Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Chapter 4 - Exponential and Logarithmic Functions - Section 4.6 Logarithmic and Exponential Equations - 4.6 Assess Your Understanding - Page 337: 5

Answer

$16$

Work Step by Step

The domain of the variable requires that $x>0$ $y = \log_a b \text{ is equivalent to } b=a^y$ Thus, $\log_4 x = 2 \text{ is equivalent to: }$ \begin{align*} x&=4^2\\ x&=16 \end{align*}
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